You ____ touch an electric fire. It's dangerous.
A. need B. must
C. needn't D. mustn't
—_______. Where is the bank?
— It's over there by the post office.
A. Excuse me B. Sorry
C. Come on D. Hello
The Great Wall of China is _______ wall in the world.
A. long B. longer
C. longest D. the longest
Think of a number, _______don't tell me what it is.
A. nor B. so
C. or D. but
— I am just going to the _____. Do you want anything?
— Yes, a bag of rice.
A. market B. classroom
C. library D. park
Newcastle upon Tyne is in _____ north-east of England
A. a B. an
C. the D. (不填)